Rollup merge of #131173 - madsmtm:target-info-solid_asp3-abi, r=lcnr

Fix `target_abi` in SOLID targets

The `armv7a-kmc-solid_asp3-eabi` and `armv7a-kmc-solid_asp3-eabihf` targets clearly have the ABI in their name, so it should also be exposed in Rust's `target_abi` cfg variable.

CC target maintainer `@kawadakk.`

compiler/rustc_target/src/spec/targets/armv7a_kmc_solid_asp3_eabi.rs

@@ -14,6 +14,7 @@ pub(crate) fn target() -> Target {
         data_layout: "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".into(),
         arch: "arm".into(),
         options: TargetOptions {
+            abi: "eabi".into(),
             linker: Some("arm-kmc-eabi-gcc".into()),
             features: "+v7,+soft-float,+thumb2,-neon".into(),
             relocation_model: RelocModel::Static,

compiler/rustc_target/src/spec/targets/armv7a_kmc_solid_asp3_eabihf.rs

@@ -14,6 +14,7 @@ pub(crate) fn target() -> Target {
         data_layout: "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".into(),
         arch: "arm".into(),
         options: TargetOptions {
+            abi: "eabihf".into(),
             linker: Some("arm-kmc-eabi-gcc".into()),
             features: "+v7,+vfp3,-d32,+thumb2,-neon".into(),
             relocation_model: RelocModel::Static,